111011121112120 has 64 divisors (see below), whose sum is σ = 251848125849600. Its totient is φ = 44036598103680.

The previous prime is 111011121112103. The next prime is 111011121112139. The reversal of 111011121112120 is 21211121110111.

It is a super-2 number, since 2×111011121112120² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111011121112094 and 111011121112103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5893144 + ... + 16023463.

It is an arithmetic number, because the mean of its divisors is an integer number (3935126966400).

Almost surely, 2^{111011121112120} is an apocalyptic number.

111011121112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111011121112120 is an abundant number, since it is smaller than the sum of its proper divisors (140837004737480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111011121112120 is a wasteful number, since it uses less digits than its factorization.

111011121112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21917668 (or 21917664 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 111011121112120 its reverse (21211121110111), we get a palindrome (132222242222231).

The spelling of 111011121112120 in words is "one hundred eleven trillion, eleven billion, one hundred twenty-one million, one hundred twelve thousand, one hundred twenty".